Step 1: Put the files in VST folder in your VST folder

    Step 2: Put the reFX folder in C:\Users\Public\Public Documents

    Step 3: In the reFX\nexus folder open settings.json and edit the library_folder option in accordance to your library path (Remember to escape backslashes by using two of them)

    Step 4: Put the images folder in C:\Users\USERNAME\AppData\Roaming\reFX\cloud\cache\

Video guide by rose3k